Sash-operating mechanism



C. P. CHAMBERLIN.

vsAsH OPERATING MECHANISM..

APPLICATION FILED NOV. 3,1921.

*WwW/WWW* Patented Nov. 7, 1922 C. P. CHMVBRLN. SASH UPERATING MECHANISM.

APPLICATION FILED Nov. a, I92I.

2 SIIEETS-SHEEI 2..

A TTORNEY.

lil. n-

eppncaom'eied november e, resi..

To @ZZ 'whom it may concern.'

lie it known that CLARENCE P. CHAM- ennnin, e. citizen of the United States, re siding at Detroit, count7 of lWayne, Stato of liliohigan, have invented eoertein ner; and useful .lmproven'ient in Sash-Operating h'ieohanisrn, and declare the following to be a full. clear, and exact description of the saine, such as will enable others skilled in the art to which it pertains to ina-ke end use the saine, reference being had to the accoin` panying drewii'igs, which iform a part of this speciiioation. i

rlfhis invention relates to sash operating mechanisms and the object of the invention is to provide a sash operatingr mechanism for use with closed vehicle bodies and the like which veryr eflicient in operation and which will not easily get out .of order. Ann other object of the invention is to provide a sash operating mechanism in which the sash may be raised or lowered by applying a slight pressure b v hand in turning the crank. .il Jfurther object of the invention is to pio vide a sash operating mechanism in which the sash is securely supported in position at any point Within its path of travel during' rotation ot the crank and upon cessation of rotation thereof. further object of the invention is to prov/'ide a sash operating mechanism Comprising a vertical rek., a gear meshingtherewith supported on and movable lon. tudinellv of a vertical screw shaft. the seid gear beine: provided with an arm connected to the sash whereby rotation. o' the zeer moves the sash up or down in the freine therefor., Another object oi" the invention is to provide a sash operating" mechanism in which the Weight of the sash is counterbeianeed so that the sash .may be raised easily as lowered. These objects and the several novel features oi the invention lare hereinafter more fully described and claimed and the preferred forni of oonsuuetion b v which these obje-cts ebtained is shown in the accompanying draw ings in which Fig'. 'l is a side elevation of the door or a closed body vehicle provided with my iind proved sash operating mechanism.

'Fig'. 2 is an enlarged section teken on line 2-2 of Fig. l.

n 3 a section teiten on line 3-3 et* Itri". E.;

Serial Lla'o. 512,535.

Fig.

lariy in Fig. 2, in which a roller 6 engages' which is rotatablyiinounted on the upper end or arm 7L The anni 7 is formed integ-rally with or attached to a gear 8 which is rotatably mounted on a nut 9 provided with a member l0 preventingthe gea-r from coming oit from the" nut. i rhe nut 9 is threaded onto a vertical screw shaft 11 which has a bearing in the member 12 et the upper end `which is supported on the plate 17, the upper end oi'the shaft 'll being provided with o, beveled gear i3 secured thereto which meshes with a beveled gear 11i secured to a shaft 15. bearing is formed integrally with the plate 17 and is adapted to receive the shaft l5, the plate l? being secured by the screws 18 to the fra-nie member 2 which is shovvn more particularly' in Fig. l. The shaft l5 is provided with a collar 2O and the shaft is prevented from longitudinal movement in the bearing i6 by the bevel gear M- et one end' :and by the collar 2O at the opposite end. The shaft i5 is provided with an enteni'iinr; threaded end 2l to which is secured the handle 22. lt can thus be seen that upon rotation of the handle 22 the shaft. l5 is rotated which rotates the beveled gear le thus rotating the beveled gear' and Shaft 1l 'to whioh it is secured. `The nut 9 is held from rotation by the engagement of the rQ'ear 8 between the two sides 23 of the toothed rack 24 and thus-as the screw shaft l'i is rotated the nut 9 is moved up or doivn thereby. As shown in Fig. 1 the gear 8 is provided with teeth 25 which mesh with the `teeth 26 on the raolr 2e and as the nut 9 travels upvverdly or downwardly on the sorevv shaft 1i. the gear 8, due to its engl-agement with the reel: 24, is rotated which ino-ves 'the erro/Z through the are of e circle as indicated by the position shown by dotted line-s in Fig. 1. This movement of the erin diletto eonnectionwith the sash 3 :move-'s the seeh downwardly, the being giapponesi at any point within alsY its path of movement by the engagement of the gear 8 with the toothed raclr 24. The toothed rack 24 is supported in a bracket 27 at the lower end which is secured to a trame member 28 extending across and connected at each end to the frame members 1. This bracket 27 also supports the lower end of the screwshaft 11. as shown more particularly in Fig. a. The lower end of the screw shaft 11 is recessed to receive a ball 29 which is supported in a plate 3() mounted within a chamber 31 and supported on a coiled spring 32, a plug 33 supporting the said coiled spring. It can thas be seen that due to its weight, the Window glass 4, when the vehicle is traveling over abnmpy road tends to jar up and down in the frame which forcing down on the end of the arm 7 when in the dotted position shown in Fig. 1, causes the gear to oscillate which moves the nut 9 thus moving the sha-ft 11, the spring 32 takingr up the movement and ilexibly supporting the sash. It will be oted from Fig. 2'that the moving parts o the device are contained within the inner side board and the outer side board of the frame, the rack 24 beingr secured to the outer side board by the screws 35 which eX- tend through the rack 24; and through spacer blocks indicated by dotted lines 36 which space the rack on the member 34 to support it in alignmentI with the gear 8 shown in Fig. 2. The plate 17 is secured to the frame member 2 by the screws 18, the said plate 17 supporting' the upper end of the screw shaft and rotatingr mechanism therefor, as hereinbefore described. As shovvn in Fig. 2, a rubber strip 38 is provided about the lower edge of the glass 4 and is held in place by the channel sh aped metal sash 3. The frame member 34 is provided with a metal strip 39 which extends across the door and is secured to the member 34. the inwardly extending: edge of the member 39 engaging the rubber strip 38 when the Window is moved to the uppermost position., thus preventing; water from entering' between the 4 and frame member 34 which might damage the mechanism. As will be seen from `Figs. 1 and 2. a spiral. spring 41 is connected at one end at 42 to the nut 9 and the opposite end extends through and is secured to the gear 8 at 43. This spring acts as a counter-bah ance for the weight of the sash, the gear 8` being turned downwardly against the tension of the springn when lower the sash and when the 2gear 8 is again turned upwardlv the spring 41. tends to turn the same uphwardly so that the weight of the sash is no necessarily overcome by rotation of the handle, the rotation of the handle merelv actuatingr the mechanism from which all strain has been thus relieved.

ln operation the device is iirst considered to be in the uppermost position showi'i ifi-saam in full lines big. 1. Upon rotation of the handle 22 which is transmitted to the.

screw shaft V11, the nut 9 is moved downwardly on the said shaft which brings the center of the gear 8 down and due to its engagement with the rack 24 causes the said gearpto rotate on the .nut 9 against the tension of the spring 41 thus moving the gear to the dotted position shown in Fig. 1, which by means of the engagement of the roller 6 of the arm 7 in the way )t the sash 3' moves the sash 3 downwardly. lt will be noted that by this construction the vertical movement of the sashis mach greater than the vertical movement et the gear 8, the rotation of the gear causingr a greater proportionate movement of the sash. The sash may travel' to the lower cross piece i a() of the door the cross bar 28 being out of the path ot' movement of the said sash. Whenyit is desired to again raise the window the handle 22 may be turned in the opposite direction which rotates the screw shaft 11 to draw the nut 9 `upwardly which, vwith ,the assistance of the spring; el, turns the gear 8 back to the upper position shown in lfig. 1. thus raising the sash to the closed position.

From the foregoing description it becomes evident that the device is very simple and eiiicient in operation, providing a device whereby a sash may be easily and eiiectively raised or lowered by rotation of a crank and supported at any point within its path of travel and further provides a device which accomplisheslthe objects described. Having thus fully described my invention. its utility and mode ot operation, what I claim and desire to secure by Letters Patent of the lllnited States is 1. ln a sash operating,` mechanism, a framework. a sash mounted to slide therein in a vertical plane, a rotatably mounted screw shaft, a n n-rot-atable nut in. threaded relation therewi h1 a gear rotatably mounted on the nut, zin arm extending from the gear and provided with a roller on the outer end thereof, a way on the sash in which the said roller is adapted to ride, a stationary rack in which the said gear meshes7 and means for rotating the screw shaft.

2. In a sash operating mechanism. a framework, a sash slidably mounted therein. a vertical screw shaft rotatably mount-- ed in the frame work, a nut adapted upon rotation of the screw shaft to travel longitudinally thereof, a gear rotatably mounted on the nut, an arm extending.r therefrom and connected with the sash Lwhereby rotation of the arm and gear correspondingly raises or lowers the sash7 a stationary rack in which the said gea-r meshes, and means for rotat ing the screw shaft.

3. lin a sash i operating mechanism. 'frenievwzn'h7 a sash mounted. to slide therein i ,essere in a vertical plane, a bracket extending across the framework7 a screw shaft rotatably mounted therein, a non-rotatal'ile nutl in threaded relation therewith7 a stationary rack7 a gear rotatably mounted on the nut and me: iing with the said rack` an arm eatending from the said gear and provided with ay roller on the outer end thereoi. a way formed in the lower sash bar in which the said roller is adapted to ride, and means ior rotating the screw shaft.

Ll. In a sash operating mechanism. a framework. a sash mounted to slide therein in a Vertical plane. a bracket extending across he 'tramework7 a vertical screw shaft rotatably mounted therein, a spring supportingA the screw shaft. a non-rotatable nut in threaded relation with the said shafty a rack mounted on Vthe said bracket, a gear rotatably mounted on ther said nut and meshing with the said rack, an arm extending 'from the gear and provided with ay roller on the outer end thereof. a way in the i lower sash bar in which the said roller is adapted to ride. and mea-ns for ri'itating the screw shaft.

ln a sash operating mechanism. coniprising in combination a 'tramemn' t having an opening in the upper part and the lower part being formed with spaced walls, a

sash slidably mounted in the trame adapted to be raised into the opening or to'be lows ered between the said walls, an operating mechanism t'or the sash consisting ot a vertical screw shaft rotatably mounted in the framework, a non-rotatable nut in threaded relation therewith, a vertical rack extending between the walls of the said framework, a trear rotatably mounted on the nuit and meshing with the said rack, an arm er;- tending from the gear. va 'way' in the lower sash bar in which the end o1c the. said arm is adapted to ride and a crank for rotating the screw shaft.

6. ln a sash operating` mechanism, comprising in combination a framework having an openingr in the upper part and the lower part being formed with spaced Walls7 a sash slidably mounted in the frame adapted to be raised into the opening or to lowered between the said valle7 an operatingmechanism for the sash consisting' of a crank member on the .inner walliot the trame and provided with a shaft extendingr therethrough. a gear mounted on the crank shat't between the said walls. a second gear meshing' therewith. a rotatable screw shaft to which the said second rear securej a non-rotatal le nut in threaded relation therewith. a gear rotatabl)v mounted on the nut7 an arm extending' from the said gear and provided with a roller on the outer cud thereot'. a way on the in which the said roller is adapt-ed to ride, and a stationary rack in which the said gear meshes.

T. In a sash operating mechanism7 a 'traniework.y a sash slidably mounted there-` in. a vertical screw shaft rotatably mounted in the framework, a. nut adapted upon rotation ot' the screw shaft to travel longitudinally thereof. a gear rotatably mounted on the nut. an arm extending therefrom and connected with the sash wherebyY rotation o't the arm and 2ejear correspondingly raises or lowers the sash. a spring adapted to counter-balance the weight ot the sash, a stationary rack in which the said gear meshes. and means for rotating' the screw shaft. i

Si. ln a sash operating meehanism, framework. a sash slidalbly mounted therein. a` vertical screw shatt rotatably mounted in the framework, a mit adapted upon rotation of the screw shaft to travel longitudinally thereof, gear rotatably mounted on the nut. an arm 'extending therefrom and connected with the sash whereby rotation ot the arm and gear correspondingly raises or lowers the sash, a stationary rack in which the said gear meshes, aspring yieldably resisting rotation of the gear to lower the sash and assisting rotation of the gear to raise the sash, and means for rotating` the screw shaft,

lin testimony whereof, l sign this speciication.

CLARENCE l), CHf'lilBlltLlN.

be i 

